Ter verduidelijking: hij laat non-stop allerlei imitaties van roepjes of stukjes van zang van vogels horen die hij in juni-augustus 2015 leerde kennen. 

Sonagram length is 4 sec, and presented recording lasts 6 sec. First two sounds are mimicked Richard’s Pipit Anthus richardi calls, last sound on sonagram is mimicked Yellow-browed Warbler Phylloscopus inornatus song (at 3.5 sec in recording) and, at end of recording (after 5.5 sec), one can hear mimicked flight calls of Black Woodpecker Dryocopus martius.